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About DoomWiki.org

The Doom Wiki is an extensive community effort to document everything related to id Software's masterpiece games Doom and Doom II, other games based on the Doom engine, Doom 3, Doom (2016), Doom Eternal, and more. We have created 14,277 articles to date.

This site is a wiki, so everyone is encouraged to create and edit articles. New contributors should read our FAQ first. If this is your first time using a wiki, be sure to check out the basic editing instructions as well. If you need additional help, or wish to discuss general aspects of this wiki, pay a visit to the Central Processing discussion board.

See the news board to read and post news about ongoing or upcoming events in the Doom universe.

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Did you know that the -turbo command line parameter was added to Doom by John Carmack as a prank to allow Shawn Green to beat John Romero in a deathmatch?

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Featured article - December 2021

Aspect ratio

Aspect ratio is a term which refers to the ratio between the width and height of a logical frame buffer, called the logical aspect ratio, or a physical video display device, called the physical aspect ratio.

Vanilla Doom ran only in a tweaked VGA "Mode Y" 320x200 video mode. On properly configured CRT monitors, which were the only widely available and inexpensive consumer display device for computers at the time, this video mode took up the entire screen, which had a 4:3 physical aspect ratio (320x240). This meant that the 320x200 image, with a 16:10 logical ratio, was stretched vertically - each pixel was 20% taller than it was wide.
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